Even FASTER damage calculations!
* Now with more native!
* Less matrix math thanks to bulk-property-update support!
* Zero JNI on the View.damageInParent() path!
* Fully aware of RT-driven animators!
* Likely full of new and exciting bugs!
* But it also fixes at least 1 existing invalidate bug!
Change-Id: Ie0773f85a60850ff2668370c58defef2e8aa079f
diff --git a/libs/hwui/DamageAccumulator.h b/libs/hwui/DamageAccumulator.h
new file mode 100644
index 0000000..c62a351
--- /dev/null
+++ b/libs/hwui/DamageAccumulator.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef DAMAGEACCUMULATOR_H
+#define DAMAGEACCUMULATOR_H
+
+#include <utils/LinearAllocator.h>
+
+#include <SkMatrix.h>
+#include <SkRect.h>
+
+#include "utils/Macros.h"
+
+namespace android {
+namespace uirenderer {
+
+struct DirtyStack;
+class RenderNode;
+
+class DamageAccumulator {
+ PREVENT_COPY_AND_ASSIGN(DamageAccumulator);
+public:
+ DamageAccumulator();
+ // mAllocator will clean everything up for us, no need for a dtor
+
+ // Push a transform node onto the stack. This should be called prior
+ // to any dirty() calls. Subsequent calls to dirty()
+ // will be affected by the node's transform when popNode() is called.
+ void pushNode(const RenderNode* node);
+ // Pops a transform node from the stack, propagating the dirty rect
+ // up to the parent node.
+ void popNode();
+ void dirty(float left, float top, float right, float bottom);
+
+ void finish(SkRect* totalDirty);
+
+private:
+ LinearAllocator mAllocator;
+ DirtyStack* mHead;
+};
+
+} /* namespace uirenderer */
+} /* namespace android */
+
+#endif /* DAMAGEACCUMULATOR_H */